Xerox Corporation

Fuji Xerox Co., Ltd.

Eduardo Mariano Freire

Gary Alan Kneezel

Cathie J Burke

Thomas A Tellier

Christopher R Morton

David Allen Mantell

John Richard Andrews

Yonglin Xie

William G Hawkins

Roger Guy Markham

Steven J Dietl

Juan J Becerra

Yoshihiko Fujimura

Dale R Ims

Peter A Torpey

Lesley P Dudek

Alan D Raisanen

Michael P O'Horo

Andrew S Yeh

Scott Charles Warner

Scott N Seabridge

Harry Anderson Williams

Methods and apparatus provide for automatic fluid ejector alignment and performance evaluation and modification in one or multiple planes. A fluid ejector fires a drop through a drop detection module. A signal indicating drop presence or absence is sent to a computer. The computer analyzes the data, and makes a compensation determination of a preferred method of using the fluid ejector. The compensation determination may include electronically modifying the image data to be printed, physically manipulating the fluid ejector, completely skipping the fluid ejector during printing operations, or in some other way modifying the fluid ejector or image data such that apparent printed image error due to fluid ejector alignment or performance error is reduced.

Methods and apparatus for an automatic fluid ejector alignment and performance system

A method of printing with a fluid jet printer () is provided. The printer () has a printhead () with a fluid ejecting face () facing a recording medium (), the fluid ejecting face () having at least one fluid ejector () arranged thereon. The method includes: imparting movement to at least one of the fluid ejector () and the recording medium () such that the recording medium () moves relative to the fluid ejector () along a fast scan direction () at a velocity (v); and, selectively ejecting fluid from the fluid ejector () toward the recording medium () as the movement is being imparted, such that: (i) a main drop is formed and has a first velocity (v) in a first direction; and, (ii) a satellite droplet is formed and has a second velocity (v) in a second direction that forms an angle (&#x3b8;) with respect to the first direction, wherein &#x3b8; substantially satisfies the equation: tan &#x3b8;=v(vcos &#x3b8;)&#x2212;/v].

Controlling direction of satellite droplet ejection in ink jet printer

A printer with reduced required space for printbar substrates in a printhead is disclosed. A first printbar has of a plurality of first die modules, for applying a first color, spaced apart so as to have gaps between each die module and located on a top surface of a first substrate. A second printbar has of a plurality of second die modules, for applying a second color, different for the first color, spaced apart so as to have gaps between each die module and located on a bottom surface of the first substrate. A third printbar for applying the first color and a fourth printbar for applying the second color, both have die modules, spaced apart on a top surface and a bottom surface of a second substrate, that correspond with the gaps on the top surface and the bottom surface of the first substrate, respectively.

Compact full-width array architecture without satellite and butting errors

When a thermoplastic spacer is applied to a glass pane in the production of insulating glass panes, the nozzle from which the plastic with the desired cross sectional shape is extruded along the edge of the glass pane. The speed with which the plastic is applied along the edge of the glass pane is chosen depending on the temperature of the plastic. Here, for a stipulated temperature setpoint the speed with which the plastic is applied along the edge of the glass pane is stipulated. If the temperature increases, the speed is increased; conversely, when the temperature drops below the setpoint, the speed with which the plastic is applied along the edge of the glass pane is reduced. This ensures that the correct amount of thermoplastic is always extruded onto the glass pane and a spacer with a uniform cross section is obtained.

Ink jet printer having a printhead assembly for recording high quality graphic images and photo quality images

The systems and methods of this invention allows for an electrical contact structure of the drop ejecting transducer in an inkjet printhead to be designed in such a way that the relatively thick electrical contact lines are not in the ink drop ejection path between the drop ejector transducer and the corresponding nozzle. Such a design thereby minimizes any visible defects due to misdirected satellite drops.

Low topography thermal inkjet drop ejector structure

In an ejector for a thermal ink-jet printhead, a heating element exposing an area to liquid ink in the printhead includes an insulative layer around the lateral edges thereof, particularly those edges not having conductors associated therewith. This insulation creates a more uniform temperature distribution over the heating area, resulting in a uniform nucleation of a vapor bubble within the liquid ink.

Thermal ink-jet printhead with lateral thermal insulation for the

An ink-jet printhead accepts a series of digital addresses as image data. Each digital address causes an individual ejector in the printhead having the particular address to be activated. The frequency of operation of the printhead can be directly related to the frequency at which addresses are submitted to the printhead. A scheduler polls image data for spot placements which require simultaneous activation of a plurality of ejectors in a set of interdependent ejectors, and then reschedules the activation of ejectors to avoid conflicts.

Ejector activation scheduling system for an ink-jet printhead

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Webster, NY, United States of America

Eduardo Mariano Freire